

def remove_vowel(obj: str):
    vowel = ['a', 'e', 'i', 'o', 'u']
    lst = list(obj)
    for i in range(len(lst)-1, -1, -1):
        if lst[i] in vowel:
            lst.remove(lst[i])
    return ''.join(lst)


res = remove_vowel('aeiouaeioufdsfaeiuosdf')
print(res)


def func(lst: list):
    for i in range(len(lst)):
        for j in range(len(lst)):
            if lst[i] + lst[j] == 0:
                return i, j
    else:
        return None


lst = [1, 2, 3, 2, 2, 4]
lst1 = [1, 2, 3, -2, 2, 4]
print(func(lst))
print(func(lst1))


# class B:
#     def _func(self):
#         pass
#
#
# class A:
#     a = B()
#
#     def __init__(self, ):
#         pass
#
#
# if __name__ == '__main__':
#     a = A()
#